Impeller for a rotary injector



FIG. 1 is a perspective view, taken from above, of the impeller for a rotary injector showing our new design;

FIG. 2 is another perspective view, taken from below;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation view thereof, the rear elevation view being identical to the front view;

FIG. 5 is a left side elevation view thereof, the right side elevation view being identical to the left side view; and,

FIG. 6 is a bottom plan view thereof.

The dashed line showing of structural lines is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design. 

CLAIM The ornamental design for an impeller for a rotary injector, as shown and described. 